Evidence map›Paper›PMID 32681547›Full record

Trial reportPediatric obesity2021

Effect of a high protein/low glycaemic index diet on insulin resistance in adolescents with overweight/obesity-A PREVIEW randomized clinical trial.

Elke Dorenbos, Mathijs Drummen, Tanja Adam, Jesse Rijks, Bjorn Winkens, J Alfredo Martínez, Santiago Navas-Carretero, Gareth Stratton, Nils Swindell, Pauline Stouthart and 7 more

Abstract readMulticenter StudyRandomized Controlled Trial
In one paragraph

Trial report in Pediatric obesity, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Management of Childhood Obesity.International journal of molecular sciences · 2026
    Review
  4. Weight management for overweight and obese adolescents: Current treatments.Asia Pacific journal of clinical nutrition · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Elke DorenbosNUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.ORCID 0000-0001-8675-9672
Mathijs DrummenNUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.
Tanja AdamNUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.
Jesse RijksCentre for Overweight Adolescent and Children's Healthcare (COACH), Maastricht University Medical Centre, Maastricht, The Netherlands.
Bjorn WinkensDepartment of Methodology and Statistics, Care and Public Health Research Institute (CAPHRI), Maastricht University, Maastricht, The Netherlands.
J Alfredo MartínezDepartment of Nutrition, Food Science and Physiology, Centre for Nutrition Research (CIN), Universidad de Navarra, Pamplona, Spain.
Santiago Navas-CarreteroDepartment of Nutrition, Food Science and Physiology, Centre for Nutrition Research (CIN), Universidad de Navarra, Pamplona, Spain.
Gareth StrattonResearch Centre in Applied Sports, Technology, Exercise and Medicine (A-STEM), Swansea University, Swansea, UK.
Nils SwindellResearch Centre in Applied Sports, Technology, Exercise and Medicine (A-STEM), Swansea University, Swansea, UK.
Pauline StouthartCentre for Overweight Adolescent and Children's Healthcare (COACH), Maastricht University Medical Centre, Maastricht, The Netherlands.
Kelly MackintoshResearch Centre in Applied Sports, Technology, Exercise and Medicine (A-STEM), Swansea University, Swansea, UK.
Melitta McnarryResearch Centre in Applied Sports, Technology, Exercise and Medicine (A-STEM), Swansea University, Swansea, UK.
Angelo TremblayDepartment of Kinesiology, Université Laval, Québec, Canada.
Mikael FogelholmDepartment of Food and Nutrition, University of Helsinki, Helsinki, Finland.
Anne RabenDepartment of Nutrition, Exercise and Sports, Faculty of Science, University of Copenhagen, Frederiksberg, Denmark.
Margriet Westerterp-PlantengaNUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.
Anita VreugdenhilNUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands.ORCID 0000-0003-1499-5937

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPubertal insulin resistance (IR) is associated with increased risk of type 2 diabetes mellitus development in adolescents with overweight/obesity.

objectivesThe PREVIEW study was a randomized parallel trial assessing the change in IR, analyzed by Homeostatic Model Assessment of IR (HOMA-IR), at 2 years after randomization to a high protein vs a moderate protein diet in adolescents with overweight/obesity. It was hypothesized that a high protein/low glycaemic index diet would be superior in reducing IR compared to a medium protein/medium GI diet, in insulin resistant adolescents with overweight or obesity.

methodsAdolescents with overweight/obesity and IR from the Netherlands, United Kingdom and Spain were randomized into a moderate protein/moderate GI (15/55/30En% protein/carbohydrate/fat, GI ≥ 56) or high protein/low GI (25/45/30En% protein/carbohydrate/fat, GI < 50) diet. Anthropometric and cardiometabolic parameters, puberty, dietary intake and physical activity (PA) were measured and effects on HOMA-IR were analyzed.

results126 adolescents were included in this study (13.6 ± 2.2 years, BMI z-score 3.04 ± 0.66, HOMA-IR 3.48 ± 2.28, HP n = 68, MP n = 58). At 2 years, changes in protein intake were not significantly different between timepoints or intervention groups and no effects of the intervention on IR were observed. The retention rate was 39%, while no compliance to the diets was observed.

conclusionsThe PREVIEW study observed no effect of a high protein/low GI diet on IR in adolescents with overweight/obesity and IR because of lack of feasibility, due to insufficient retention and dietary compliance after 2 years.

Indexed as

Glycemic IndexInsulin ResistanceAdolescentDiet, High-ProteinFemaleFollow-Up StudiesHumansMalePatient CompliancePediatric ObesityTreatment Outcomedietary proteinglycaemic indexglycaemic loadphysical activitypubertal insulin resistance

Identifiers

PMID32681547
PMCPMC7757177

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.